Hydraulic master cylinder
US5715681A · kind A · utility
12Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 8, 1996 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | May 8, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/32
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydraulic master cylinder having a cylinder body (1) with a piston (3) slidable therein. The piston carries a sealing assembly (20) to permit pressurization of a pressure chamber (6) and fluid recuperation upon retraction of the piston. The sealing assembly includes a first seal (23) of relatively hard material slidable against the internal cylinder wall and a relatively resilient second seal (25) arranged to act between the sealing surfaces of the piston and the first seal to provide a fluid tight pressure seal during pressurization of the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.